Surgical instrument handle assembly



FIG. 1 is a perspective view of a surgical instrument handle assembly showing my new design;

FIG. 2 is a side view thereof;

FIG. 3 is an end view thereof;

FIG. 4 is another end view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a perspective environmental view thereof.

The portions of the article in broken lines are shown for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a surgical instrument handle assembly, as shown and described. 